YEW LUN TIAN and MARTIN QUIN POLLARD HERE are some initial reactions to President Xi Jinping's speech on Sunday opening the 20th congress of China's ruling Communist Party, a week-long event where he is widely expected to win a third leadership term and cement his place as the country's most powerful ruler since Mao Zedong. JOHN DELURY, PROFESSOR OF CHINESE STUDIES, YONSEI UNIVERSITY GRADUATE SCHOOL OF INTERNATIONAL STUDIES, SEOUL "While Xi's tone was unapologetic, the speech came across as less expansive than five years ago (and thankfully much shorter). Instead of confidently entering his guaranteed second term, Xi at this Congress is entering uncharted waters…